| 5820589 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 269 TF target 266 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 19 / 280 |
Estimated T-Level: 20.3 ⓘ TF below 2^63 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-10-04 | Brian Smith | DF67160D50327386 | 0 | Windows,Prime95,v16,(aka WS1) | | Factored | 2000-10-28 | Dick Miller | DF67160D50327386 | 2083162 | Windows,Prime95,v20,(aka WW1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2020-08-11 | storm5510 | E8C28E353B32E17F | 1 | 5563786 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-09-03 | Sid & Andy | NF-PM1 | B1=3100000, B2=6788903940 | | 2020-08-12 | ATH | CERT | Proof certified good | | 2020-08-11 | storm5510 | C-PRP | Proof Certified Good
Proof Power: 7
| | 2020-08-11 | TJAOI | F | Factor: 455581573805864685007 / TF: 68-69 | | 2019-11-19 | GdS | NF-PM1 | B1=200000, B2=6000000 | | 2018-07-05 | ramgeis | NF | no factor TF: 67-68 | | 2016-07-11 | Gordon Spence | NF | no factor TF: 66-67 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2015-09-13 | snme2pm1 | NF | no factor TF: 65-66 | | 2014-10-18 | lycorn | NF | no factor TF: 64-65 | | 2014-10-09 | Nesowa | NF | no factor TF: 63-64 | | 2011-02-25 | USAFSS | NF-PM1 | B1=65000, B2=1088750, E=6 | | 2000-10-28 | Milldang | C-LL | DF67160D50327386 | | 2000-09-23 | Milldang | NF-PM1 | B1=20000, B2=20000 | | 1998-10-04 | -anonymous- | C-LL | DF67160D50327386 | | 1998-04-27 | -anonymous- | NF | no factor TF: 1-62 |
|
